/* ==========================================================================
   Instituto Paideia — Estilos globais
   ========================================================================== */

:root {
  /* Paleta */
  --color-bg: #faf5ee;
  --color-bg-tan: #efe8de;
  --color-primary: #c15b3c;
  --color-primary-dark: #a8482d;
  --color-primary-darker: #96422a;
  --color-cta-bg: #a8482d;
  --color-text-heading: #2a2f3a;
  --color-text-body: #5c6373;
  --color-text-muted: #7d8494;
  --color-border: #e3d9cb;
  --color-footer-bg: #241a15;
  --color-footer-text: #cfc3b6;
  --color-footer-text-dim: #9c8f80;
  --color-card-bg: #ffffff;

  /* Tipografia */
  --font-serif: "Lora", "Georgia", serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --container-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text-body);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  color: var(--color-text-heading);
  margin: 0;
  font-weight: 500;
  line-height: 1.25;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 32px;
}

.eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.italic-accent {
  font-style: italic;
  color: var(--color-primary);
}

/* ---------------- Buttons & links ---------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 13px 24px;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
  white-space: nowrap;
}

.btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.btn:hover svg {
  transform: translateX(3px);
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
}

.btn-outline {
  background: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
}

.btn-outline-light {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.55);
  color: #fff;
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-primary);
}

.link-arrow svg {
  width: 15px;
  height: 15px;
  transition: transform 0.2s ease;
}

.link-arrow:hover svg {
  transform: translateX(4px);
}

/* ---------------- Header ---------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 245, 238, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo-mark {
  width: 130px;
  height: auto;
}

.logo-divider {
  width: 1px;
  height: 26px;
  background: var(--color-border);
}

.logo-sub {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  text-transform: uppercase;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 40px;
}

.main-nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-heading);
  transition: color 0.2s ease;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.nav-toggle svg {
  width: 26px;
  height: 26px;
  color: var(--color-text-heading);
}

/* ---------------- Hero ---------------- */

.hero {
  padding: 80px 0 96px;
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-heading {
  font-size: 2.6rem;
  letter-spacing: -0.01em;
}

.hero-rule {
  width: 56px;
  height: 2px;
  background: var(--color-primary);
  margin: 28px 0 22px;
}

.hero-lede {
  font-size: 1.05rem;
  max-width: 46ch;
  margin-bottom: 20px;
}

.hero-tagline {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-style: italic;
  color: var(--color-primary);
  margin-bottom: 32px;
}

.hero-art {
  position: relative;
  aspect-ratio: 1 / 1;
}

/* ---------------- Intro / dialogue section ---------------- */

.section-tan {
  background: var(--color-bg-tan);
  padding: 72px 0;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}

.split-heading {
  font-size: 1.9rem;
}

.split-body p {
  font-size: 1.02rem;
  margin: 0 0 20px;
}

/* ---------------- Feature cards ---------------- */

.section {
  padding: 88px 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 40px;
  gap: 24px;
  flex-wrap: wrap;
}

.section-head h2 {
  font-size: 1.9rem;
  margin-top: 6px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #f5e2d3;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
}

.feature-card h3 {
  font-size: 1.3rem;
}

.feature-card p {
  font-size: 0.95rem;
  margin: 0;
  flex-grow: 1;
}

.feature-sublinks {
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
  margin-top: 4px;
}

.feature-sublinks a {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text-heading);
  transition: color 0.2s ease;
}

.feature-sublinks a:hover {
  color: var(--color-primary);
}

.feature-sublinks svg {
  width: 18px;
  height: 18px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.feature-sublinks .chev {
  width: 14px;
  height: 14px;
  margin-left: auto;
  color: var(--color-text-muted);
}

/* ---------------- Publications ---------------- */

.pub-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.pub-card {
  display: flex;
  flex-direction: column;
}

.pub-thumb {
  width: 100%;
  aspect-ratio: 16 / 10;
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 18px;
  background: linear-gradient(135deg, #f6ddc6, #eec3a2);
}

.pub-thumb svg {
  width: 100%;
  height: 100%;
}

.pub-tag {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 8px;
  display: block;
}

.pub-card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.pub-card p {
  font-size: 0.92rem;
  margin: 0 0 14px;
}

.pub-meta {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* ---------------- CTA banner ---------------- */

.cta-banner {
  background: var(--color-cta-bg);
  color: #fff;
  padding: 64px 0;
  position: relative;
  overflow: hidden;
}

.cta-banner .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.cta-text {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  line-height: 1.5;
  max-width: 34ch;
  color: #fff;
}

.cta-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.cta-decor {
  position: absolute;
  right: -60px;
  top: 50%;
  transform: translateY(-50%);
  width: 320px;
  height: 320px;
  opacity: 0.5;
  pointer-events: none;
}

/* ---------------- Footer ---------------- */

.site-footer {
  background: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding: 64px 0 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr repeat(5, 1fr);
  gap: 24px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo-sub {
  color: var(--color-footer-text);
}

.footer-tagline {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--color-primary);
  margin-top: 16px;
  font-size: 0.95rem;
}

.footer-col h4 {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-footer-text-dim);
  margin-bottom: 16px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col a {
  font-size: 0.9rem;
  color: var(--color-footer-text);
  transition: color 0.2s ease;
}

.footer-col a:hover {
  color: #fff;
}

.social-row {
  display: flex;
  gap: 12px;
}

.social-row a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}

.social-row a:hover {
  background: var(--color-primary);
}

.social-row svg {
  width: 16px;
  height: 16px;
  color: var(--color-footer-text);
}

.social-row a:hover svg {
  color: #fff;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  font-size: 0.82rem;
  color: var(--color-footer-text-dim);
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a:hover {
  color: #fff;
}

/* ---------------- Page header (stub pages) ---------------- */

.page-hero {
  padding: 72px 0 56px;
  text-align: center;
}

.page-hero h1 {
  font-size: 2.4rem;
  margin-bottom: 18px;
}

.page-hero p {
  max-width: 60ch;
  margin: 0 auto;
  font-size: 1.05rem;
}

.page-body {
  padding: 0 0 96px;
}

.page-body .container {
  max-width: 820px;
}

.page-body h2 {
  font-size: 1.5rem;
  margin: 40px 0 16px;
}

.page-body p {
  margin: 0 0 16px;
  font-size: 1rem;
}

.notice-box {
  background: var(--color-bg-tan);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 24px 28px;
  margin-bottom: 8px;
}

.notice-box strong {
  color: var(--color-text-heading);
}

/* ---------------- Responsive ---------------- */

@media (max-width: 960px) {
  .hero .container {
    grid-template-columns: 1fr;
  }

  .hero-art {
    order: -1;
    width: 100%;
    max-width: 340px;
    margin: 0 auto;
  }

  .split {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .card-grid,
  .pub-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr 1fr;
    row-gap: 36px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 720px) {
  .main-nav,
  .header-actions .btn-outline {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-header.nav-open .main-nav {
    display: flex;
    position: absolute;
    top: 84px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 32px;
    gap: 20px;
    border-bottom: 1px solid var(--color-border);
  }

  .site-header.nav-open .main-nav .nav-entrar-mobile {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    width: 100%;
    margin-top: 4px;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
    color: var(--color-primary);
    font-weight: 600;
  }

  .hero-heading {
    font-size: 2rem;
  }

  .card-grid,
  .pub-grid {
    grid-template-columns: 1fr;
  }

  .cta-banner .container {
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-decor {
    display: none;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}



@media (max-width: 480px) {
  .container {
    padding: 0 20px;
  }

  .footer-top {
    grid-template-columns: 1fr;
  }
}

/* Link "Entrar" duplicado dentro do menu mobile — some no desktop,
   só aparece quando o menu do hambúrguer está aberto (ver @media 720px). */
.nav-entrar-mobile {
  display: none;
}

.nav-entrar-mobile svg {
  width: 16px;
  height: 16px;
}